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  2. Antenna measurement - Wikipedia

    en.wikipedia.org/wiki/Antenna_measurement

    Antenna measurement techniques refers to the testing of antennas in order to ensure that the antenna meets specifications or simply to characterize it. Typical antenna parameters are gain , bandwidth , radiation pattern , beamwidth , polarization , impedance ; These are imperative communicative means.

  3. Antenna analyzer - Wikipedia

    en.wikipedia.org/wiki/Antenna_analyzer

    An antenna analyzer measuring SWR and complex impedance of a dummy load. MFJ-269, MFJ Enterprises Inc. An antenna analyzer or in British aerial analyser (also known as a noise bridge, RX bridge, SWR analyzer, or RF analyzer) is a device used for measuring the input impedance of antenna systems in radio electronics applications.

  4. Electromagnetic compatibility - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_compatibility

    Log-periodic antenna measurement for outdoors Electromagnetic compatibility ( EMC ) is the ability of electrical equipment and systems to function acceptably in their electromagnetic environment , by limiting the unintentional generation, propagation and reception of electromagnetic energy which may cause unwanted effects such as ...

  5. Reference antenna - Wikipedia

    en.wikipedia.org/wiki/Reference_antenna

    Sometimes rather than measure the performance of the reference antenna theoretical methods are used. The antenna may be simulated using electromagnetic simulation, or its properties derived from formulae based on electromagnetic theory. These methods are only useful if the materials and dimensions of the antenna can be characterised very well ...

  6. Gain (antenna) - Wikipedia

    en.wikipedia.org/wiki/Gain_(antenna)

    When actual measurements of an antenna's gain are made by a laboratory, the field strength of the test antenna is measured when supplied with, say, 1 watt of transmitter power, at a certain distance. That field strength is compared to the field strength found using a so-called reference antenna at the same distance receiving the same power in ...

  7. Angle of arrival - Wikipedia

    en.wikipedia.org/wiki/Angle_of_arrival

    Measurement of AoA can be done by determining the direction of propagation of a radio-frequency wave incident on an antenna array or determined from maximum signal strength during antenna rotation. The AoA can be calculated by measuring the time difference of arrival (TDOA) between individual elements of the array.

  8. EMF measurement - Wikipedia

    en.wikipedia.org/wiki/EMF_measurement

    broadband measurements: performed using a broadband probe, that is a device which senses any signal across a wide range of frequencies and is usually made with three independent diode detectors; frequency selective measurements : in which the measurement system consists of a field antenna and a frequency selective receiver or spectrum analyzer ...

  9. Phase-comparison monopulse - Wikipedia

    en.wikipedia.org/wiki/Phase-Comparison_Monopulse

    Phase-comparison monopulse is a technique used in radio frequency (RF) applications such as radar and direction finding to accurately estimate the direction of arrival of a signal from the phase difference of the signal measured on two (or more) separated antennas [1] or more typically from displaced phase centers of an array antenna.